How many meters is three kilometers?

1 km = 2 li = 1000 m, so 3 km is 3000 m. 1 Li = 1 Hua Li = 500 m

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1. X - 1 = half x + quarter x + eighth x
2. One thirteenth of the weight of blood in the human body, Xiao Li weighs 40 kg. How many kg does the blood in her body weigh?
3. Five times of a number is more than eight times of 6.5
4. If the least common multiple of a and B is 60, then C = 1___ ．
5. 1. 1 / 4 x + 3 = 5.42, (1-25%) x = 1.53, 60% x-3 = 9.6
6. 6 8 11 16 23
7. If the function value y of the primary function y = (2m + 3) x + 3 decreases with the increase of the value of X, then the value range of M is
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11. If the solution of the inequality system x > 2m + 1, x > m-2 is x > 2, find the value of M
12. Simple calculation of 49 × 49 + 49
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16. 1-1/3-1/15-1/35-1/63-1/99=?
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